然而，如果能给被捕食的动物提供一些它们在野外时那样的安全区域，它们的数量会降到很低但不灭绝。
However, if safe areas like those prey animals have in the wild are provided, the prey population drops to low level but not extinction.
尽管有些研究已经在统计每年被捕食的动物的数量，但是具体的结果仍在估计当中。
Although studies have been conducted in some areas to determine the actual number of prey killed each year, the results are estimates.
长颈鹿是被捕食的动物，经过进化后，它们现在很少会躺下，因为躺下后要再起来可不容易。
As a prey animal, the evolution of the giraffe's habits means that they rarely lie down, as it's difficult for them to get up again.
由于被捕食的动物要比捕食它们的掠夺者大得多，有时需要两个星期才能让小丑虾去吃完一个活海星。
Since the prey is so much larger than the predator, it sometimes takes the shrimp two weeks to finish off a single (living) starfish.
比如说，像小鹿或者山羊这种被捕食的种群，它们的代表动作就是突然快速逃跑的动作和突然转弯；相反的，猫科动物之类的捕食种群会练习潜行追踪、猛扑和撕咬等动作。
Prey species, like young deer or goats, for example, typically play by performing sudden flight movements and turns, whereas predator species, such as cats, practice stalking, pouncing, and biting.
在广阔的区域，这种快速的变红能使头足类动物不被捕食者发现，就像红色的物体在蓝光下不易被看见一样。
In the wild, this quick blush hides the cephalopods from their predators, as red objects are imperceptible under blue light.
人们常说当捕食动物活捉住猎物时，被捕食者的神经系统像死机了一样。
They say that a prey animal's nervous system shuts down when the prey animal is snatched by a predator.
他们发现自然世界的动物由90%的被捕食者和10%的捕食者组成。
They learned that the natural world is made up of 90 percent prey animals and 10 percent predator animals.
捕食是小哺乳动物死亡最常见的原因，也导致被捕食动物遗骸发生明显改变。
Predation is the most common cause of death in small mammals. It also causes the greatest modification on their remains.
捕食是小哺乳动物死亡最常见的原因，也导致被捕食动物遗骸发生明显改变。
Predation is the most common cause of death in small mammals. It also causes the greatest modification on their remains.
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